Defibrillators include defibrillators with defibrillation function only, AED defibrillator for first-aid and defibrillator monitor. Defibrillator monitor is a monitor with defibrillation function.Generally speaking, a defibrillator monitor has ECG, SPO2, NIBP, Pulse rate,TEMP, ETCO2, pacemaking and defibrillation etc functions. Pacemakers and defibrillators are generally used for 5 to 7 years or more, depending on usage and device type. After that a new device will be changed. But how long can a patient live with a defibrillator? Is there a fixed life expected span? We will find more in this article.